4.0L HO Jeep Engine Build

OK, checked spring installed height and found that I'm going to need more shims than I have laying around. I can only get these in boxes of fifty so if anyone needs any in the future, PM me, lol. Spring installed height on early engines is rated 66-74 lbs. @ 1.625", the springs for the later engines are rated 71-79 lbs. @ 1.640". I'll be using the later springs.